// 动画 @duration: 持续时间,  @delay: 延迟播放, @count: 播放次数(infinite: 无限次播放)
.animation (@name, @duration: 1s, @delay: 0s, @count: infinite) {
  .ann(@name);
  .andur(@duration);
  .andel(@delay);
  .anc(@count);
}
.animation-state (@duration: 1s, @delay: 0s, @count: infinite) {
  .andur(@duration);
  .andel(@delay);
  .anc(@count);
}
.transition (@property: transform, @duration: 1s, @delay: 0s, @cubic-bezier: linear) {
  .tsp(@property);
  .tsdur(@duration);
  .tsdel(@delay);
  .tstf(@cubic-bezier);
}
